/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui;

/**
 * Interface for listening to page lifecycle events.
 * <p>
 * This interface may be implemented by clients.
 * </p>
 *
 * @see IPageService#addPageListener
 */
public interface IPageListener {
    /**
     * Notifies this listener that the given page has been activated.
     *
     * @param page the page that was activated
     * @see IWorkbenchWindow#setActivePage
     */
    public void pageActivated(IWorkbenchPage page);

    /**
     * Notifies this listener that the given page has been closed.
     *
     * @param page the page that was closed
     * @see IWorkbenchPage#close
     */
    public void pageClosed(IWorkbenchPage page);

    /**
     * Notifies this listener that the given page has been opened.
     *
     * @param page the page that was opened
     * @see IWorkbenchWindow#openPage
     */
    public void pageOpened(IWorkbenchPage page);
}